Slack vs Discord: reliability compared
Based purely on the incidents the providers themselves published on their official status pages over the last 90 days. Over that period, Discord shows the better uptime.
How to read this
Slack currently reports “Operational”, Discord reports “Operational”. A provider that publishes a lot of incidents is not necessarily less reliable — it is often the sign of an honest, granular status page. The number that matters is total downtime, shown above.